Correlation parameter r^ab for red and blue galaxies in the simulation and observation as a function of halo mass. Black crosses show the direct estimate for the simulation, where the error bars are the standard deviation of the mean over the 64 line-of-sights. The solid brown line shows the r^ab inferred by the halo model fit to the G3L signal of the MS, and the green dashed line is the result of the fit to the KV450 × GAMA G3L signal. The shaded areas show the 68% credibility bands of the fits.